package tij4.concurrent.source;

import java.util.concurrent.TimeUnit;

class Daemon implements Runnable {
    private Thread[] t = new Thread[10];

    @Override
    public void run() {
        for (int i = 0; i < t.length; i++) {
            t[i] = new Thread(new DaemonSpawn());
            t[i].start();
            System.out.print("DaemonSpawn " + i + " started. ");
        }
        for (int i = 0; i < t.length; i++) {
            System.out.print("t["+i+"].isDaemon() = "+t[i].isDaemon()+", ");
        }
        while (true) {
            Thread.yield();
        }
    }
}

class DaemonSpawn implements Runnable {
    @Override
    public void run() {
        Thread.yield();
    }
}

public class Daemons {

    public static void main(String[] args) throws Exception{
        Thread d = new Thread(new Daemon());
        d.setDaemon(true);
        d.start();
        System.out.print("d.isDaemon() = "+d.isDaemon()+", ");
//        TimeUnit.SECONDS.sleep(1);
        TimeUnit.MILLISECONDS.sleep(1);
    }
}
